US1008832A - Shuttle for weaving-looms. - Google Patents

Description

M. & R. LEMARCHAND 61V. MONTET.

SHUTTLE FOR WEAVING LooMs.

APPLICATION FILED DEC. 3, 1908.

1,008,832. Patented Nov. 14, 1911.

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UNTTED STATES PATENT OFFICE.

MAURICE LEMARCI-IAND, RAYMOND LEMARCHAND, AND VICTOR MONTET, OF ROUEN,

. FRANCE.

SHUTTLE FOR WEAVING-LOOMS.

Specification of Letters Patent.

Patented Nov. 141:, 1911.

T 0 all whom it may concern: v

Be it known that we, MAURICE LEMAR- GHAND, RAYMOND LEMAROHAND, and VICTOR Mon'rn'r, citizens of the Republic of France, residing at 83 Boulevard Cauchase, Rouen, Seine Inferieure, in the Republic of France, engineers, have invented certain new and useful Improvements in Shuttles for Weaving-Looms, of which the following is a specification.

This invention relates to a shuttle which is designed to stop the loom or to engage a shuttle change mechanism when the bobbin placed in the shuttle is nearly empty.

Our invention consists in arranging in the shuttle an opening capable of freely receiving a feeling finger arranged in front of the lay and of combining with this shuttle a stopping device normally held away from the said opening by the thread wound around the bobbin and arranged to be placed automatically in the opening" opposite the feeling finger, when the thread fails, in order to actuate the said finger. The shuttle therefore plays with regard to this finger the same part as a jacquard card with relation to the needles by means of its holes and full parts.

The accompanying drawing illustrates a shuttle made according to our invention with a sliding stopping device.

Figure 1 is an elevation of a portion of the shuttle the tongue being raised to receive a fresh bobbin. Fig. 2 is a corresponding plan the tongue being lowered. Fig. 3 is a plan in which the stopping device is shown in horizontal section. Fig. l is a transverse section of the tongue sur rounded with a bobbin, in the line A-A, Fig. 1. Figs. 5 and 6 aretransverse sections of the stopping device and its guide on the lines B, B, and C, C, Figs. 2 and 3 respectively.

In the front wall of the shuttle we provide a slot 1 in which is fitted a metal frame 2 serving as a guide for the stopping device or key 3. The frame 2 consists of an elongated block in which is formed a longitudinal slot 4 open at one end; ribs 5 are made on the inner faces of the said slot from the said open end up to a certain distance from the opposite end, and these ribs have a curvilinear form as shown in Fig. 3. In.

the slot 4 can slide the key 3 which consists by preference of a block of fiber or other strong and light material and which is guided on the ribs 5 by means of grooves also curvilinear and made in its upper and lower faces as shown in Figs. 5 and 6. After the introduction of the key 3 into the slot 4 the open end of the latter is closed by means of a small metal block 6 which has a screw 7 passing through it and thus serves to fix the frame 2 in the slot in the shuttle.

The key 3 is provided with a projection 8 directed toward the interior of the shuttle and extending to near the base of the bobbin 9 which ispassed over the tongue 10 so as to be able to abut against the first turns of the thread wound upon the said bobbin and to thus retain the key in the position shown in Figs. 1 and 2. The right hand portion of the slot 4 is then free and forms a hole in which a feeling finger 11 mounted upon the breast beam of the loom can be introduced without any obstacle. This hole, moreover, is of much larger dimensions than those of the finger 11 in order to provide for the difl'erent sizes which various shuttles may have and forthe play of various devices on which depend the relative positions of the shuttle and finger. When there remains on the bobbin only a length of thread corre sponding to a few picks, the end of the projection 8 is set free and under the action of the shock which is produced at the end of the passage of the shuttle, the key is projected by the inertia toward the end 12 of the frame as shown in Fig. 3. On the forward movement of the lay which follows the stoppage of the shuttle, the key 3 strikes the finger 11 and pushes it back so as to operate a disengaging or shuttle change mechanism. The force necessary to push back the finger is borne by the ends of the key one of which bears against the ribs 5 and the other against the part 12 of the frame. By reason of the curvilinear form of the ribs 5 the end of the projection 8 moves in an oblique path with relation to the axis of the tongue and thus moves away from the last turns of thread remaining of the bobbin. Moreover, the key will be found to be immovable in the position shown in Fig. 3 through a small vertical pin 13 sliding very freely through a hole in the key and engaging by its weight in a recess 14 in the lower edge of the frame 2; by this means the key is stopped during the two or three passages which the shuttle may still new bobbin thereon.

In order to insure regularity of position of the last turns of the thread of the bobbin in front of the nose of the projection 8 it is advantageous to alter the usual form of the spring 15 of the tongue 10; instead of bearing against the tongue with its end, the spring is bent at a certain distance from the latter at 16 and the end portion 17 is turned up so as to enable it to be applied against the inner wall of the bobbin 9; when the latter is slid on to the tongue it gradually flattens the middle part of the spring sothat the end 17 oscillating around the point 16 tends to rise and consequently distend the base of the bobbin as shown in Fig. 4, causing a flattening of the same against the lateral walls of the tongue. The inequalities in the shape or diameter of the bobbins are thus allowed for in a very simple manner.

With our improvements the thread does not suffer any wear as the key is very light and is only pressed against the thread by the action of the inertia which is so much the weaker as the play of the said key is normally m'Z or very small.

Claims.

1. The combination of a shuttle having a lateral opening, a slide movable in the said opening in the longitudinal direction of the shuttle, and a heel on the said slide adapted to abut against the yarn wound around the cop or pirn of the shuttle and thus maintain the slide at one end of the opening so long as the pirn is carrying sufiicient yarn, the said slide being thrown by the inertia to the other end of the opening, when the yarn fails, at the end of the stroke of the shuttle,

substantially as described.

2. The combination of a shuttle having a lateral opening, aslide movable in the said opening in the longitudinal direction of the shuttle, the lower wall of said opening having a cavity made therein, and a small bolt slidable in a vertical hole of the slide, the

said bolt being adapted to engage in the said cavity when the slide comes to one end of the lateral opening of the shuttle.

In testimony that we claim the foregoing as our invention, we have signed our names in presence of two subscribing witnesses. MAURICE LEMARCHAND. RAYMOND LEMARCHAND. VICTOR MONTET. Witnesses:

EDOUARD RIDAULT, PAUL RIDAULT.

Copies of this patent may be obtained for five cents each, by addressing the Commissioner of Patents, Washington, D. G.

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